

Since the equations (REF ) agrees with the equations
(REF ), we can identify the new string product in the NS-NS sector,
\(L|^{(0,0)}=L|^{(0,0)}(0,0,1)\)  ,
to that constructed in [1]}. The cohomomorphism
(REF ) is then given by
\(\hat{g}\ =\ \vec{\mathcal {P}}\exp \left(\int _0^1dt (\lambda +\bar{\lambda })|^{(0,0)}(0,0,t)\right)\,.\) 
